// prepare exec.Cmd to run mumax3 compute process
func NewProcess(ID string, gpu int, webAddr string) *Process {
// prepare command
inputURL := "http://" + ID
command := *flag_mumax
gpuFlag := fmt.Sprint(`-gpu=`, gpu)
httpFlag := fmt.Sprint(`-http=`, webAddr)
cacheFlag := fmt.Sprint(`-cache=`, *flag_cachedir)
forceFlag := `-f=0`
cmd := exec.Command(command, gpuFlag, httpFlag, cacheFlag, forceFlag, inputURL)
// Pipe stdout, stderr to log file over httpfs
outDir := util.NoExt(inputURL) + ".out"
errMkdir := httpfs.Mkdir(outDir)
if errMkdir != nil {
SetJobError(ID, errMkdir)
log.Println("makeProcess", errMkdir)
j := JobByName(ID)
if j != nil {
j.Reque()
}
return nil
}
out, errD := httpfs.Create(outDir + "/stdout.txt")
if errD != nil {
SetJobError(ID, errD)
log.Println("makeProcess", errD)
j := JobByName(ID)
if j != nil {
j.Reque()
}
return nil
}
cmd.Stderr = out
cmd.Stdout = out
return &Process{ID: ID, Cmd: cmd, Start: time.Now(), Out: out, OutputURL: OutputDir(inputURL), GUI: webAddr}
}
// SetOD sets the output directory where auto-saved files will be stored.
// The -o flag can also be used for this purpose.
func InitIO(inputfile, od string, force bool) {
if outputdir != "" {
panic("output directory already set")
}
InputFile = inputfile
if !strings.HasSuffix(od, "/") {
od += "/"
}
outputdir = od
if strings.HasPrefix(outputdir, "http://") {
httpfs.SetWD(outputdir + "/../")
}
LogOut("output directory:", outputdir)
if force {
httpfs.Remove(od)
}
_ = httpfs.Mkdir(od)
initLog()
}